LQM 20V 4.5A 90W USB AC Adapter Battery Charger Power Supply For Lenovo ThinkPad X1 Carbon Touch Ultrabook T440 E431 6277-9QU with USB Flash Drive output: 20V~4.5A~90W Input: 100~240V~1.5A 50/60Hz,Connector: yellow USB tip(square tip) Replacement for Lenovo ThinkPad X1 Carbon Touch Ultrabook 45N0237 344428U 344425U N3N25UK N3N75UK N3N2SUK N3N82UK PA-1900-72 Package: 1x Ac adapter & 1x Ac power cable Condition:100% OEM compatible, works as original part,12 months replacement warranty